特低电压的应用简析  

Brief Analysis on Application of Extra-low-voltage

作　　者：王厚余[1] 

机构地区：[1]中国航空规划建设发展有限公司,北京市100120

出　　处：《建筑电气》2015年第11期3-5,共3页Building Electricity

摘　　要：简述特低电压在应用中可能发生的电击危险;介绍IEC对特低电压的分类,并分别陈述不同特低电压在应用中应予注意的要点:PELV的应用应辅以等电位联结措施以确保电气安全;SELV是最为安全的ELV,它不需辅以其他防电击措施;FELV在应用中应视具体情况注意将其回路导体接地。Possible hazards of electric shock in the application of extra-low-voltage are briefly discussed. The classification of extra-low-voltages by IEC is introduced. Key points which shall be paid attention in the application of different extra-low- voltages are described respectively： the application of PELV shall be supported by equipotential bonding to guarantee electrical safety; SELV is the most safe ELV, which does not need other electric shock protection measures; and the loop conductor of FELV shall be grounded according to particular situations in the application of FELV.

关 键 词：特低电压 PELV SELV FELV 转移故障电压 机床局部照明 手提行灯 电弧焊接 

分 类 号：TU852[建筑科学]